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MAC_IS_PRESENT(3) BSD Library Functions Manual MAC_IS_PRESENT(3)
NAMEmac_is_present -- report whether the running system has MAC support
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS#include <sys/mac.h>
intmac_is_present(constchar*policyname);
DESCRIPTION
The mac_is_present() function determines whether the currently-running
kernel supports MAC for a given policy or not. If policyname is
non-NULL, the presence of the named policy (e.g. "biba", "mls", "te") is
checked, otherwise the presence of any MAC policies at all is checked.
RETURN VALUES
If the system supports the given MAC policy, the value 1 is returned. If
the specified MAC policy is not supported, the value 0 is returned. If
an error occurs, the value -1 is returned.
ERRORS
[EINVAL] The value of policyname is not valid.
[ENOMEM] Insufficient memory was available to allocate internal
storage.
SEE ALSOmac(3), mac_free(3), mac_get(3), mac_prepare(3), mac_set(3), mac_text(3),
mac(4), mac(9)HISTORY
Support for Mandatory Access Control was introduced in FreeBSD 5.0 as
part of the TrustedBSD Project.
BSD July 7, 2006 BSD